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Question: Answer these questions using probability rules. Do NOT use the contingency table. Three thousand fifty-nine cases of AIDS had been reported in Santa Clara County, CA, through a certain date. Those cases will be our population. Of those cases, 6.4% obtained the disease through heterosexual contact and 7.4% are female. Out of the females with the disease, 53.3% got the disease from heterosexual contact.
a. Find P(Person is female).
b. Find P(Person obtained the disease through heterosexual contact).
c. Find P(Person is female GIVEN person got the disease from heterosexual contact)
d. Construct a Venn diagram representing this situation. Make one group females and the other group heterosexual contact. Fill in all values as probabilities.
The following table gives the opinion on collective bargaining by a random sample of 200 employees of a school system, belonging to a teachers' union.
If the width of the 95% confidence interval is identified as y, express the width of the 99% confidence interval as a multiple of y.
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
STAT11048 (T1, 2016) - Assessment. In a mathematics test, a random sample of 2025 sixth graders had a mean score of 68.1 and a standard deviation of 9. Calculate the 95% confidence interval for the population mean
Given the current economy, where employees are asked to do more with less, job stress is at an all time high. An organization wished to determine what factors in the work environment were causing the most job stress.
etermine the magnitude of the resultant Force
Calculate the magnitude of the potential difference between the plates.
q1. consider an investment portfolio of 50000 in stock a and 50000 in stock b. the expected value of a is 9.5 and b is
If we select a crew member at random, what is the probability the crew member earns:
a simple random sample of size n is drawn from a population that is normally distributed. the sample mean x is found to
Determine the probability that someone is under 30,- the probability that someone has a high income given that he or she is under 30,
The number of mathematics texts actually chosen, construct a table showing the values of the joint probability distribution of x and y.
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